Jump to page content

Keyboard–switch database System Instruments Co., Ltd.

Website http://www.sic-tky.com/
Country JP

Created by Daniel on 2015-11-05

Keyboards (as brand)

Model Year(s) Switches Serial PCB codes Reference Notes
101A8 1989 (IC) Omron B3G-S Click Amber (un-Japan; R:N)
Omron B3G-S Click White (un-Japan; R:N) (space bar)
B5GS-R101-620, 0292414-0A kbtalking.cool3c.com White clicky B3G-S used also for the enter key.

PCB code 3: TW2147

The smaller chips are marked 941405, which for Mitsubishi indicates a year ending 9. This cannot be 1979 and is unlikely to be 1999, so 1989 is presently assumed. That would make the controller IC two years older if it really is from 1987